river 0.2.6

Well, I managed make a typo in during the Zig upgrade for 0.2.5 which broke
input device identifiers. This release fixes that.

Hopefully that's the only regression I managed to introduce from 0.2.4 but
if something else come up release numbers are luckily pretty cheap :)

Full changelog:

Isaac Freund (3):
      build: bump version to 0.2.6-dev
      InputDevice: fix identifier generation
      build: bump version to 0.2.6